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Spring Hibernate Transaction Not Committing without Flush

由 霸气de小男生 提交于 2019-12-13 02:24:10

问题


In very short, my dao session.save method does not commit (UPDATE: and nor does the related service method) unless I manually specify session.flush().

This problem has been discussed once before on stackoverflow here. But there is no satisfactory answer yet, and I believe to force flush programmatically is bad practice. Help with diagnoses would be helpful.

My Service Layer:

@Transactional(readOnly = false, propagation = Propagation.REQUIRES_NEW)
public void saveTestType(TestType tt) throws TestStructureException
{
    SS.getLogger().debug("Saving tt: Id before saving is"+tt.getId());

    testTypeDao.saveNewTestType(tt);
    SS.getLogger().debug("Saving tt: Id after saving is"+tt.getId());

}

My Dao Layer

@Transactional(propagation = Propagation.MANDATORY)
public void saveNewTestType(TestType tt)  throws TestStructureException
{
    Session session = this.sessionFactory.openSession();
    try
    {
        SS.getLogger().debug("Saving TT: "+tt);
        session.saveOrUpdate(tt);
        session.flush();

    }
    catch(Exception e)
    {
        SS.getLogger().error(e.getMessage(),e);
        throw new TestStructureException(e.getMessage(),e.getStackTrace());
    }
}

My appContext.xml (I expect I have a bit of overkill in here)

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="  
   http://www.springframework.org/schema/beans 
   http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
   http://www.springframework.org/schema/aop 
   http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 
   http://www.springframework.org/schema/context
   http://www.springframework.org/schema/context/spring-context-3.1.xsd 
   http://www.springframework.org/schema/tx
   http://www.springframework.org/schema/tx/spring-tx-3.2.xsd 
   http://www.springframework.org/schema/mvc
   http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">

<!-- View Resolver -->
	
	 <bean id="jspViewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass"
            value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>
	
	<!-- i18n -->
	<bean id="messageSource"
		class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
		<property name="basename" value="classpath:messages" />
		<property name="defaultEncoding" value="UTF-8" />
	</bean>

	<bean id="localeChangeInterceptor"
		class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor">
		<property name="paramName" value="lang" />
	</bean>

	<bean id="localeResolver"
		class="org.springframework.web.servlet.i18n.CookieLocaleResolver">
		<property name="defaultLocale" value="en" />
	</bean>

	<bean id="handlerMapping"
		class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
		<property name="interceptors">
			<ref bean="localeChangeInterceptor" />
		</property>
	</bean>

	<!-- Hibernate -->
	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
		destroy-method="close">
		<property name="driverClass" value="org.postgresql.Driver" />
		<property name="jdbcUrl" value="jdbc:postgresql://localhost/test" />
		<property name="user" value="testuser" />
		<property name="password" value="buddybuddy" />



		<!-- C3P0 properties refer: http://www.mchange.com/projects/c3p0/ -->

		<property name="acquireIncrement" value="2" />
		<property name="minPoolSize" value="3" />
		<property name="maxPoolSize" value="50" />
		<property name="maxIdleTime" value="600" />
	</bean>



	<!-- Hibernate session factory -->

	<bean id="sfhbmSessionFactory"
		class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
		<property name="dataSource">
			<ref bean="dataSource" />
		</property>
		<property name="annotatedClasses">
			<list>
				<value>com.prototype2.model.user.UserAdmin</value>
				<value>com.prototype2.model.assessment.MultipleChoiceItem</value>
				...
				<value>com.prototype2.model.scores.UserRawScore</value>
				<value>com.prototype2.model.scores.UserTrueScore</value>
			</list>
		</property>
		<property name="mappingResources">
			<list>
				<value>hibernatemap.cfg.xml</value>
			</list>
		</property>



		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
				<prop key="hibernate.hbm2ddl.auto">update</prop>
				<prop key="temp.use_jdbc_metadata_defaults">false</prop>
				<prop key="hibernate.archive.autodetection">class</prop>
				<prop key="show_sql">true</prop>
				<prop key="hibernate.format_sql">true</prop>
				<prop key="hibernate.enable_lazy_load_no_trans">true</prop>
			</props>
		</property>


		<property name="packagesToScan">
			<array>
				<value>com.prototype2.model.assessment</value>
				<value>com.prototype2.model.user</value>
				<value>com.prototype2.model.scores</value>
				<value>com.prototype2.model.business</value>
				<value>com.prototype2.dao.factory</value>
				<value>com.prototype2.dao.user</value>
				<value>com.prototype2.dao.testadministration</value>
				<value>com.prototype2.service.user</value>
				<value>com.prototype2.service.testadministration</value>
			</array>
		</property>
	</bean>


	<bean id="transactionManager"
		class="org.springframework.orm.hibernate4.HibernateTransactionManager">
		<property name="sessionFactory" ref="sfhbmSessionFactory" />

	</bean>

	<tx:annotation-driven transaction-manager="transactionManager" />
	
    <context:component-scan base-package="com.prototype2.model.assessment,
    com.prototype2.model.user,
    com.prototype2.model.scores,
    com.prototype2.model.business,
    com.prototype2.dao.factory,
    com.prototype2.dao.user,
    com.prototype2.dao.testadministration,
	com.prototype2.service.user,
    com.prototype2.service.testadministration"/>
    
    
	<!-- DAO beans -->
	<bean id="userDao" class="com.prototype2.dao.user.UserDaoImpl">
		<property name="sessionFactory" ref="sfhbmSessionFactory" />
	</bean>

	<bean id="businessDao" class="com.prototype2.dao.user.BusinessDaoImpl">
		<property name="sessionFactory" ref="sfhbmSessionFactory" />
	</bean>
	
	<bean id="testTypeDao" class="com.prototype2.dao.testadministration.TestTypeDaoImpl">
		<property name="sessionFactory" ref="sfhbmSessionFactory" />
	</bean>



	<!-- Service beans -->
	<bean id="auService" class="com.prototype2.service.user.AdminUserServiceImpl">
		<property name="userDao" ref="userDao" />
	</bean>

	<bean id="businessService" class="com.prototype2.service.user.BusinessServiceImpl">
		<property name="businessDao" ref="businessDao" />
	</bean>
	
	<bean id="testTypeService" class="com.prototype2.service.testadministration.TestTypeServiceImpl">
		<property name="testTypeDao" ref="testTypeDao" />
	</bean>

	<!-- validation -->
	<mvc:annotation-driven validator="validator" />


	<bean id="validator"
		class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
		<property name="providerClass" value="org.hibernate.validator.HibernateValidator" />
	</bean>
</beans>

UPDATE: The insert was not found either with sql query, web view or junit test. The following is the junit test:

package com.prototype2.test.service;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import java.util.ArrayList;
import java.util.List;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.prototype2.model.assessment.TestType;
import com.prototype2.model.assessment.TestUnitType;
import com.prototype2.service.testadministration.TestTypeService;
import com.prototype2.test.testrunner.TestSS;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:AssessmentAdmin-servlet.xml")
public class TestUnitServiceCreateTTTest
{

@Autowired
private TestTypeService testTypeService;
private List<TestUnitType> blist = new ArrayList<TestUnitType>();
private int originalTTCount=0;
private int newTTCount=0;


@Before
public void prepTestType()
{
    TestSS.getLogger().info("testGetTuts");
    blist = testTypeService.getTestUnitTypes(TestSS.getBusiness().getId());
    originalTTCount=testTypeService.getTestTypes(TestSS.getBusiness().getId()).size();
    TestSS.getLogger().debug("originalTTCount= "+originalTTCount);
}

@Test
public void testGetTTTuts()
{

    try
    {
        TestType tt = new TestType();
        tt.setBusiness(TestSS.getBusiness());
        tt.setTestTypeName("Basic Personality Test");
        tt.addAssociatedTestTypeTestUnitType(blist.get(0));
        testTypeService.saveTestType(tt);

        newTTCount=testTypeService.getTestTypes(TestSS.getBusiness().getId()).size();


        TestSS.getLogger().info("newTTCount=" + newTTCount);


        assertTrue(newTTCount>originalTTCount);
        assertFalse(null==tt.getId());
    } catch (Exception e)
    {
        TestSS.getLogger().error(e.getMessage(), e);
        fail();
    }
}

}

UPDATE: Logs without and then with session.fluch. Notice the insert takes place with Flush on. Again, I stress, I have this problem whether going through junit test case to service or through webpage and controller to service.

==========LOGS WITHOUT FLUSH ON DAO======================================
*******originalTTCount= 2

[DEBUG] 2015-08-16 14:52:11,511: jake.prototype2.model.assessment.TestType.sortTestUnitTypePosition(TestType.java:427) associatedTestUnitTypes size=0

[DEBUG] 2015-08-16 14:52:11,514: org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:226) Obtaining JDBC connection

[DEBUG] 2015-08-16 14:52:11,514: com.mchange.v2.resourcepool.BasicResourcePool.trace(BasicResourcePool.java:1747) trace com.mchange.v2.resourcepool.BasicResourcePool@4312eb27 [managed: 11, unused: 1, excluded: 0] (e.g. com.mchange.v2.c3p0.impl.NewPooledConnection@5ed4b3e)

[DEBUG] 2015-08-16 14:52:11,515: org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:232) Obtained JDBC connection

[DEBUG] 2015-08-16 14:52:11,515: org.hibernate.engine.transaction.spi.AbstractTransactionImpl.begin(AbstractTransactionImpl.java:160) begin

[DEBUG] 2015-08-16 14:52:11,515: org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doBegin(JdbcTransaction.java:69) initial autocommit status: true

[DEBUG] 2015-08-16 14:52:11,516: org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doBegin(JdbcTransaction.java:71) disabling autocommit

[DEBUG] 2015-08-16 14:52:11,516: jake.prototype2.service.testadministration.TestTypeServiceImpl.saveTestType(TestTypeServiceImpl.java:71) Saving tt: Id before saving is null

[DEBUG] 2015-08-16 14:52:11,517: jake.prototype2.dao.testadministration.TestTypeDaoImpl.saveNewTestType(TestTypeDaoImpl.java:137) Saving TT: TestType [id=null, testTypeName=Basic Personality TestBusiness=jake.prototype2.model.business.Business@20]

With Test Type Test Unit Type Id=null TestUnitTypeId= 81Algebra One

[DEBUG] 2015-08-16 14:52:11,518: org.hibernate.engine.jdbc.spi.SqlStatementLogger.logStatement(SqlStatementLogger.java:109) 
    select
        nextval ('hibernate_sequence')

[DEBUG] 2015-08-16 14:52:11,518: org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:226) Obtaining JDBC connection


[DEBUG] 2015-08-16 14:52:11,520: org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:232) Obtained JDBC connection

[DEBUG] 2015-08-16 14:52:11,524: org.hibernate.id.SequenceGenerator.generateHolder(SequenceGenerator.java:127) Sequence identifier generated: BasicHolder[java.lang.Long[1682]]

[DEBUG] 2015-08-16 14:52:11,524: org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:131) Generated identifier: 1682, using strategy: org.hibernate.id.SequenceGenerator

[DEBUG] 2015-08-16 14:52:11,525: org.hibernate.engine.jdbc.spi.SqlStatementLogger.logStatement(SqlStatementLogger.java:109) 
    select
        nextval ('hibernate_sequence')

[DEBUG] 2015-08-16 14:52:11,526: org.hibernate.id.SequenceGenerator.generateHolder(SequenceGenerator.java:127) Sequence identifier generated: BasicHolder[java.lang.Long[1683]]

[DEBUG] 2015-08-16 14:52:11,527: org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:131) Generated identifier: 1683, using strategy: org.hibernate.id.SequenceGenerator

[DEBUG] 2015-08-16 14:52:11,528: jake.prototype2.service.testadministration.TestTypeServiceImpl.saveTestType(TestTypeServiceImpl.java:74) Saving tt: Id after saving is1682

[DEBUG] 2015-08-16 14:52:11,528: org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175) committing

[DEBUG] 2015-08-16 14:52:11,529: org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doCommit(JdbcTransaction.java:113) committed JDBC Connection

[DEBUG] 2015-08-16 14:52:11,529: org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.releaseManagedConnection(JdbcTransaction.java:126) re-enabling autocommit

[DEBUG] 2015-08-16 14:52:11,529: org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.releaseConnection(LogicalConnectionImpl.java:246) Releasing JDBC connection

[DEBUG] 2015-08-16 14:52:11,530: com.mchange.v2.async.ThreadPoolAsynchronousRunner.postRunnable(ThreadPoolAsynchronousRunner.java:236) com.mchange.v2.async.ThreadPoolAsynchronousRunner@7b3d5973: Adding task to queue -- com.mchange.v2.resourcepool.BasicResourcePool$1RefurbishCheckinResourceTask@5ca15100

[DEBUG] 2015-08-16 14:52:11,530: com.mchange.v2.resourcepool.BasicResourcePool.trace(BasicResourcePool.java:1747) trace com.mchange.v2.resourcepool.BasicResourcePool@4312eb27 [managed: 11, unused: 0, excluded: 0] (e.g. com.mchange.v2.c3p0.impl.NewPooledConnection@5ed4b3e)

[DEBUG] 2015-08-16 14:52:11,531: org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.releaseConnection(LogicalConnectionImpl.java:264) Released JDBC connection

[DEBUG] 2015-08-16 14:52:11,532: jake.prototype2.test.service.TestUnitServiceCreateTTTest.testGetTTTuts(TestUnitServiceCreateTTTest.java:54) 






*****finished service
 ================================================================================
===================LOGS WITH FLUSH ON DAO=======================================



*******originalTTCount= 2


[DEBUG] 2015-08-16 14:59:39,732: org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:226) Obtaining JDBC connection

[DEBUG] 2015-08-16 14:59:39,732: com.mchange.v2.resourcepool.BasicResourcePool.trace(BasicResourcePool.java:1747) trace com.mchange.v2.resourcepool.BasicResourcePool@74b41e24 [managed: 10, unused: 0, excluded: 0] (e.g. com.mchange.v2.c3p0.impl.NewPooledConnection@5e81cf0a)

[DEBUG] 2015-08-16 14:59:39,733: org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:232) Obtained JDBC connection

[DEBUG] 2015-08-16 14:59:39,733: org.hibernate.engine.transaction.spi.AbstractTransactionImpl.begin(AbstractTransactionImpl.java:160) begin

[DEBUG] 2015-08-16 14:59:39,733: org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doBegin(JdbcTransaction.java:69) initial autocommit status: true

[DEBUG] 2015-08-16 14:59:39,734: org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doBegin(JdbcTransaction.java:71) disabling autocommit

[DEBUG] 2015-08-16 14:59:39,734: jake.prototype2.service.testadministration.TestTypeServiceImpl.saveTestType(TestTypeServiceImpl.java:71) Saving tt: Id before saving isnull

[DEBUG] 2015-08-16 14:59:39,737: jake.prototype2.dao.testadministration.TestTypeDaoImpl.saveNewTestType(TestTypeDaoImpl.java:137) Saving TT: TestType [id=null, testTypeName=Basic Personality TestBusiness=jake.prototype2.model.business.Business@20]

With Test Type Test Unit Type Id=null TestUnitTypeId= 81Algebra One

[DEBUG] 2015-08-16 14:59:39,738: org.hibernate.engine.jdbc.spi.SqlStatementLogger.logStatement(SqlStatementLogger.java:109) 
    select
        nextval ('hibernate_sequence')

[DEBUG] 2015-08-16 14:59:39,739: org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:226) Obtaining JDBC connection

[DEBUG] 2015-08-16 14:59:39,739: com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:587) acquire test -- pool size: 10; target_pool_size: 11; desired target? 11

[DEBUG] 2015-08-16 14:59:39,740: com.mchange.v2.resourcepool.BasicResourcePool.incrementPendingAcquires(BasicResourcePool.java:450) incremented pending_acquires: 2

[DEBUG] 2015-08-16 14:59:39,740: com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.<init>(BasicResourcePool.java:1788) Starting acquisition series. Incremented pending_acquires [2],  attempts_remaining: 30

[DEBUG] 2015-08-16 14:59:39,741: com.mchange.v2.async.ThreadPoolAsynchronousRunner.postRunnable(ThreadPoolAsynchronousRunner.java:236) com.mchange.v2.async.ThreadPoolAsynchronousRunner@12a57fe: Adding task to queue -- com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@46cf19d4

[DEBUG] 2015-08-16 14:59:39,741: com.mchange.v2.resourcepool.BasicResourcePool.incrementPendingAcquires(BasicResourcePool.java:450) incremented pending_acquires: 3

[DEBUG] 2015-08-16 14:59:39,742: com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.<init>(BasicResourcePool.java:1788) Starting acquisition series. Incremented pending_acquires [3],  attempts_remaining: 30

[DEBUG] 2015-08-16 14:59:39,742: com.mchange.v2.async.ThreadPoolAsynchronousRunner.postRunnable(ThreadPoolAsynchronousRunner.java:236) com.mchange.v2.async.ThreadPoolAsynchronousRunner@12a57fe: Adding task to queue -- com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@7fdc07fa

[DEBUG] 2015-08-16 14:59:39,743: com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1390) awaitAvailable(): com.mchange.v2.c3p0.impl.NewPooledConnection@5e81cf0a

[DEBUG] 2015-08-16 14:59:39,743: com.mchange.v2.resourcepool.BasicResourcePool.trace(BasicResourcePool.java:1747) trace com.mchange.v2.resourcepool.BasicResourcePool@74b41e24 [managed: 10, unused: 0, excluded: 0] (e.g. com.mchange.v2.c3p0.impl.NewPooledConnection@5e81cf0a)

[DEBUG] 2015-08-16 14:59:39,800: com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:283) com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager@1fbcc531.acquireResource() returning. 

[DEBUG] 2015-08-16 14:59:39,801: com.mchange.v2.resourcepool.BasicResourcePool.trace(BasicResourcePool.java:1747) trace com.mchange.v2.resourcepool.BasicResourcePool@74b41e24 [managed: 11, unused: 1, excluded: 0] (e.g. com.mchange.v2.c3p0.impl.NewPooledConnection@5e81cf0a)

[DEBUG] 2015-08-16 14:59:39,801: com.mchange.v2.resourcepool.BasicResourcePool._decrementPendingAcquires(BasicResourcePool.java:471) decremented pending_acquires: 2

[DEBUG] 2015-08-16 14:59:39,801: com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1825) Acquisition series terminated successfully. Decremented pending_acquires [2],  attempts_remaining: 30

[DEBUG] 2015-08-16 14:59:39,806: com.mchange.v2.resourcepool.BasicResourcePool.trace(BasicResourcePool.java:1747) trace com.mchange.v2.resourcepool.BasicResourcePool@74b41e24 [managed: 11, unused: 0, excluded: 0] (e.g. com.mchange.v2.c3p0.impl.NewPooledConnection@5e81cf0a)

[DEBUG] 2015-08-16 14:59:39,809: org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:232) Obtained JDBC connection

[DEBUG] 2015-08-16 14:59:39,816: org.hibernate.id.SequenceGenerator.generateHolder(SequenceGenerator.java:127) Sequence identifier generated: BasicHolder[java.lang.Long[1679]]

[DEBUG] 2015-08-16 14:59:39,817: org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:131) Generated identifier: 1679, using strategy: org.hibernate.id.SequenceGenerator

[DEBUG] 2015-08-16 14:59:39,818: org.hibernate.engine.jdbc.spi.SqlStatementLogger.logStatement(SqlStatementLogger.java:109) 
    select
        nextval ('hibernate_sequence')

[DEBUG] 2015-08-16 14:59:39,819: org.hibernate.id.SequenceGenerator.generateHolder(SequenceGenerator.java:127) Sequence identifier generated: BasicHolder[java.lang.Long[1680]]

[DEBUG] 2015-08-16 14:59:39,820: org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:131) Generated identifier: 1680, using strategy: org.hibernate.id.SequenceGenerator

[DEBUG] 2015-08-16 14:59:39,821: org.hibernate.event.internal.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:149) Processing flush-time cascades

[DEBUG] 2015-08-16 14:59:39,822: org.hibernate.event.internal.AbstractFlushingEventListener.prepareCollectionFlushes(AbstractFlushingEventListener.java:189) Dirty checking collections

[DEBUG] 2015-08-16 14:59:39,823: org.hibernate.engine.internal.Collections.processReachableCollection(Collections.java:194) Collection found: [jake.prototype2.model.assessment.TestType.associatedFullTests#1679], was: [<unreferenced>] (initialized)

[DEBUG] 2015-08-16 14:59:39,824: org.hibernate.engine.internal.Collections.processReachableCollection(Collections.java:194) Collection found: [jake.prototype2.model.assessment.TestType.associatedTestTypeTestUnitTypes#1679], was: [<unreferenced>] (initialized)

[DEBUG] 2015-08-16 14:59:39,824: org.hibernate.engine.internal.Collections.processReachableCollection(Collections.java:194) Collection found: [jake.prototype2.model.assessment.TestType.associatedUsers#1679], was: [<unreferenced>] (initialized)

[DEBUG] 2015-08-16 14:59:39,825: org.hibernate.event.internal.AbstractFlushingEventListener.logFlushResults(AbstractFlushingEventListener.java:123) Flushed: 2 insertions, 0 updates, 0 deletions to 2 objects

[DEBUG] 2015-08-16 14:59:39,825: org.hibernate.event.internal.AbstractFlushingEventListener.logFlushResults(AbstractFlushingEventListener.java:130) Flushed: 3 (re)creations, 0 updates, 0 removals to 3 collections

[DEBUG] 2015-08-16 14:59:39,826: org.hibernate.internal.util.EntityPrinter.toString(EntityPrinter.java:114) Listing entities:

[DEBUG] 2015-08-16 14:59:39,826: org.hibernate.internal.util.EntityPrinter.toString(EntityPrinter.java:121) jake.prototype2.model.assessment.TestType{business=jake.prototype2.model.business.Business#1, created=null, testTypeName=Basic Personality Test, associatedUsers=[], id=1679, updated=2015-08-16 14:59:39.818, associatedFullTests=[], associatedTestTypeTestUnitTypes=[jake.prototype2.model.assessment.TestTypeTestUnitType#1680]}

[DEBUG] 2015-08-16 14:59:39,827: org.hibernate.internal.util.EntityPrinter.toString(EntityPrinter.java:121) jake.prototype2.model.assessment.TestTypeTestUnitType{positionInTest=1, testUnitType=jake.prototype2.model.assessment.TestUnitType#81, business=jake.prototype2.model.business.Business#1, created=null, testType=jake.prototype2.model.assessment.TestType#1679, id=1680, updated=Sun Aug 16 14:59:39 PDT 2015}

[DEBUG] 2015-08-16 14:59:39,828: org.hibernate.engine.jdbc.spi.SqlStatementLogger.logStatement(SqlStatementLogger.java:109) 
    insert 
    into
        TestType
        (businessId, created, testTypeName, updated, id) 
    values
        (?, ?, ?, ?, ?)

[DEBUG] 2015-08-16 14:59:39,842: org.hibernate.engine.jdbc.spi.SqlStatementLogger.logStatement(SqlStatementLogger.java:109) 
    insert 
    into
        TestTypeTestUnitType
        (businessId, created, positionInTest, TestTypeId, TestUnitTypeId, updated, id) 
    values
        (?, ?, ?, ?, ?, ?, ?)

[DEBUG] 2015-08-16 14:59:39,868: jake.prototype2.service.testadministration.TestTypeServiceImpl.saveTestType(TestTypeServiceImpl.java:74) Saving tt: Id after saving is1679

[DEBUG] 2015-08-16 14:59:39,868: org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175) committing

[DEBUG] 2015-08-16 14:59:39,869: org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doCommit(JdbcTransaction.java:113) committed JDBC Connection

[DEBUG] 2015-08-16 14:59:39,869: org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.releaseManagedConnection(JdbcTransaction.java:126) re-enabling autocommit

[DEBUG] 2015-08-16 14:59:39,869: org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.releaseConnection(LogicalConnectionImpl.java:246) Releasing JDBC connection

[DEBUG] 2015-08-16 14:59:39,870: com.mchange.v2.async.ThreadPoolAsynchronousRunner.postRunnable(ThreadPoolAsynchronousRunner.java:236) com.mchange.v2.async.ThreadPoolAsynchronousRunner@12a57fe: Adding task to queue -- com.mchange.v2.resourcepool.BasicResourcePool$1RefurbishCheckinResourceTask@73e16fb6

[DEBUG] 2015-08-16 14:59:39,870: com.mchange.v2.resourcepool.BasicResourcePool.trace(BasicResourcePool.java:1747) trace com.mchange.v2.resourcepool.BasicResourcePool@74b41e24 [managed: 11, unused: 0, excluded: 0] (e.g. com.mchange.v2.c3p0.impl.NewPooledConnection@5e81cf0a)

[DEBUG] 2015-08-16 14:59:39,871: org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.releaseConnection(LogicalConnectionImpl.java:264) Released JDBC connection

[DEBUG] 2015-08-16 14:59:39,871: jake.prototype2.test.service.TestUnitServiceCreateTTTest.testGetTTTuts(TestUnitServiceCreateTTTest.java:54) 






*****finished service

I would very much like to remove my programmatic flush and follow spring convention. Any help, advice, or explanation would be deeply appreciated


回答1:


Judging from your comments, this is what happens:

  • code enters saveTestType starting a transaction

  • code enters saveNewTestType (still using the same transaction)

  • if you flush your session, changes get written to the database. Note that no commit is happening

  • code leaves saveNewTestType; Nothing happens here. No flush, no commit, no change to state of the transaction

  • you query the data you just stored in the database. That query goes against the database (not the session). Since it only sees what is written to the database, it only sees the new entities when you did a flush. Note that still no commit happened so far.

  • code leaves saveTestType. This ends the transaction, issues a commit, which in turn causes a flush to happen.

You have various option to get the behavior you want:

  1. Issue a flush manually. Very flexible, but most of the time way to flexible. And you already said, you don't like that.

  2. Configure your FlushMode to AUTO or ALWAYS, ensuring that your changes get flushed before queries get executed.

  3. Move the queries outside the scope of the initial transaction, into their own transaction.




回答2:


Credit for answer goes to @M.Deinem

The problem is you are using openSession instead of getCurrentSession. The later integrates properly with springs tx management the first opens a new session outside the scope of the current transaction and as such you have to manage it yourself. In short change the getCurrentSession instead.

In short, this could have been a critical error had I left the session.flush in. I would have been working outside of Spring tx management without knowing I was working outside the bounds. This is the kind of error that can lead to long term subtle and not so subtle problems on a large scale app.

Thanks a million to M.Deinem in particular and stackoverflow in general for the help.



来源：https://stackoverflow.com/questions/32033027/spring-hibernate-transaction-not-committing-without-flush

标签
Spring
hibernate
transactions
commit
flush
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